Where does the term "Pinching A Loaf" come from.?

Question

I know what "Pinching A Loaf" means. I want to know the origins.

Answer 1

It's common when cooking stuffed breads to "pinch the loaf" closed after adding the fillings. The sphincter also pinches the feces as it passes, creating a loaf-like shape....from a degenerate's point of view. No one's sure when this term first become commonplace.

Answer 2

Some unrefined person thought it up.